Improvement in freezing apparatus



v UNITED STATES PATENT FFICE.

EDMUND o. 'roznn, or NEWCASTLE, CANADA.

IMPROVEMENT IN FREEZING APPARATUS.

Specification forming part of Letters Patent No.170, 198, dated November30, 1875; application filed March 19, 1875.

To all whom it may concern:

Be it known that I, EDMUND G. TOZER, of Newcastle, in the county ofNorthumberland, in the Province of New Brunswick, Canada, have inventedcertain new and useful Improvements in Freezing Apparatus, of which thefollowing is a specification:

My invention consists in the arrangement and combination of doublepipes, one within the other, the outer ones being pierced with holes.These are arranged acrossthe floor, and under the ceiling overhead, forthe purpose of condensing moisture arising from food stored infreezing-chamber, andfrom the pipes containing the freezing-mixture;also, in the combination and arrangement of double pipes connecting withvertical and horizontal pipes, combined with troughs forfreezing-mixture; also, in the combination and arrangement ofwaste-water pipes with double pipes and cyl-' inders havingventilating-pipes, so as to allow waste-water to run off and air tocirculate through the same into the interior of the freezing-chamber;also, in the combination and ar rangement of cylinders centrally locatedwithin the chamber having ventilating-pipes,in combination with troughs,vertical pipes, horizontal pipes, and double pipes within afreezingchamber, so as to distribute a freezing-current toward thecenter of the chamber, and from the center toward the sides uniformly.

, These pipes and cylinders may be charged with any suitable freezingmixture-as salt and waterand the outer walls of the apparatus orbuilding are to be constructed double, and filled with sawdust or othernon-conductors heretofore employed for such purposes.

Figure 1 is a vertical central section of a freezing apparatus showingmy invention. Fig. 2 is a horizontal section of the same. Fig. 3, is aplan view of one of the boxes. Fig. 4 is a vertical section of the same.Fig. 5 is a vertical section taken at right angle to Fig. 1.

A are the outer walls, and B the inner walls; D, the upper and lowerfloors of the building. The spaces between said walls, ceiling, andfloors are to be filled with tan-bark, sawdust, or other non-conductingmaterial heretofore employed for such purposes. E is a trough in theceilings, arranged around the walls to same with the freezing-mixture.

contain the freezing-mixture, and from which troughs the vertical tubesor pipes F are charged. Said vertical pipes F are arranged around thewalls of the preserving-chamber, their upper ends connecting with thetroughs E, and their lower ends with the horizontal pipes G around thewalls of the preservingchamber near the floor D. H I are horizontaldouble pipes connecting with the trough E, passing across to the troughE on the opposite side, being arranged near the ceiling overhead, theouter one being provided with holes c. Oonnectin g with the horizontalpipes G are also similar double pipes J K, running across from oppositesides near the floor D, the outer one being perforated. These outsideperforated pipes condense moisture, which arises from the food storedinthe chamber, or from the freezing-mixture. tubular cylinders,centrally located, extending from the ceiling overhead, their lower,ends connecting with apipe, M, between the upper and lower floor, whichpipe M also connects with a pipe connecting the whole series of verticaland horizontal pipes, so as to allow all waste-water to run 011' fromthe dissolving ice inthe freezing-mixture with which the troughs, pipes,and cylinders are charged. The cylinders are provided with a pipe, N,centrally located wlthin the same until it reaches about half-way totheir top, where it bends at a right angle, and passes through its sidesin opposite directions. N N N are pipes to allow a circulation of airthrough the waste-water pipe M and cylinders L with the interior of thefreezing-chamber. O are trap-doors arranged in the floor above thetroughs E and cylinders L, so as to permit of being opened to fill th Pisa'side door for entering the chamber to store or remove food from thesame, the interior of the chamber being provided with racks R forholding tiers of boxes S, which are so constructed and arranged as toallow a free circulation ofcold air through and between tb em. Theseboxes S have several partitions or bars, T, running lengthwise of thesame, but not extending to the bottom of the box. The ends and sides areprovided with holes 2 to admit a free circulation of air through thesame. These boxes are designed for packing fresh L are one or morelfish, which are placed between the partitions, with their backsupward,ntwo in each compartment. Their tails are lapped by each other,according to their size, more orless, in

which condition they remain frozen until required for. exportationortransportation and Having thus described my invention, what I claimis-- 1. The horizontal double pipes H I under the ceiling, incombination with troughs E, as and for the purposes set forth;

2. The horizontal double pipes J K near the floor D, in combination withhorizontal pipes G, substantially as and for the purposes set forth.

3. The waste-water pipe M beneath the floor D, in combination withthehorizontal pipes G,

vertical pipes F, and cylinder or cylinders L,

and ventilating-pipes N, as and for the purposes set forth.

4. The combination and arrangement of troughs E, vertical pipes F,horizontal pipes Gr, double pipes H. I J K and cylinders L with apreserving or freezing chamber, as set forth.

' EDMUND c. TOZEB.

Witnesses SYLVENEUS WALnm, JAS. B. BELL.

